patch 8.2.0828: Travis: regexp patttern doesn't work everywhere

Problem:    Travis: regexp patttern doesn't work everywhere.
Solution:   Use [:blank:] instead of \b. (Ozaki Kiichi, closes #6146)
diff --git a/src/if_ruby.c b/src/if_ruby.c
index e989c01..6773a2a 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -100,7 +100,8 @@
 #endif
 
 // On macOS pre-installed Ruby defines "SIZEOF_TIME_T" as "SIZEOF_LONG" so it
-// conflicts with the definition in config.h then causes macro-redifned warning.
+// conflicts with the definition in config.h then causes a macro-redefined
+// warning.
 #ifdef SIZEOF_TIME_T
 # undef SIZEOF_TIME_T
 #endif
@@ -113,6 +114,11 @@
 # include <st.h>  // for ST_STOP and ST_CONTINUE
 #endif
 
+// See above.
+#ifdef SIZEOF_TIME_T
+# undef SIZEOF_TIME_T
+#endif
+
 #undef off_t	// ruby defines off_t as _int64, Mingw uses long
 #undef EXTERN
 #undef _
diff --git a/src/version.c b/src/version.c
index 8a94dde..c2cb3ca 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    828,
+/**/
     827,
 /**/
     826,